Kernel/linux-next
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git synced 2024-12-29 09:12:07 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

scsi: qla2xxx: Add qla2x00_async_done() for async routines

Browse Source 
This done routine will delete the timer and check for its return value and
decrease the reference count accordingly. This prevents boot hangs reported
after commit 31e6cdbe0e ("scsi: qla2xxx: Implement ref count for SRB")
was merged.

Link: https://lore.kernel.org/r/20220208093946.4471-1-njavali@marvell.com
Fixes: 31e6cdbe0e ("scsi: qla2xxx: Implement ref count for SRB")
Reported-by: Ewan Milne <emilne@redhat.com>
Tested-by: Ewan D. Milne <emilne@redhat.com>
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Saurav Kashyap <skashyap@marvell.com>
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Saurav Kashyap 2022-02-08 01:39:46 -08:00 committed by Martin K. Petersen
parent 62ed6622aa
commit 49b729f58e
1 changed files with 16 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

17
drivers/scsi/qla2xxx/qla_iocb.c
View File

@ -2560,6 +2560,20 @@ qla24xx_tm_iocb(srb_t *sp, struct tsk_mgmt_entry *tsk)
}
}
static void
qla2x00_async_done(struct srb *sp, int res)
{
if (del_timer(&sp->u.iocb_cmd.timer)) {
/*
* Successfully cancelled the timeout handler
* ref: TMR
*/
if (kref_put(&sp->cmd_kref, qla2x00_sp_release))
return;
}
sp->async_done(sp, res);
}
void
qla2x00_sp_release(struct kref *kref)
{
@ -2573,7 +2587,8 @@ qla2x00_init_async_sp(srb_t *sp, unsigned long tmo,
void (*done)(struct srb *sp, int res))
{
timer_setup(&sp->u.iocb_cmd.timer, qla2x00_sp_timeout, 0);
sp->done = done;
sp->done = qla2x00_async_done;
sp->async_done = done;
sp->free = qla2x00_sp_free;
sp->u.iocb_cmd.timeout = qla2x00_async_iocb_timeout;
sp->u.iocb_cmd.timer.expires = jiffies + tmo * HZ;